 According to measurements by a research, the average salinity of their three sampling stations was 32.7.All stations are located inside Port Shelter.The measurements, conducted from 4 October 2012 to 15 April 2013, also found that the average water temperature was 19.1 °C (with a range from 15.8 °C to 27.8 °C), as well as pH (acidity) of 8.08, with range from 7.62 to 8.35.